package cn.fighter3.service.impl;

import java.util.Objects;

import javax.annotation.Resource;

import org.springframework.security.core.userdetails.UserDetails;
import org.springframework.security.core.userdetails.UserDetailsService;
import org.springframework.security.core.userdetails.UsernameNotFoundException;
import org.springframework.stereotype.Service;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;

import cn.fighter3.entity.LoginUser;
import cn.fighter3.entity.User;
import cn.fighter3.mapper.UserMapper;

/**
 * @Author 三更 B站： https://space.bilibili.com/663528522
 */
@Service
public class UserDetailsServiceImpl extends ServiceImpl<UserMapper, User> implements UserDetailsService {

    @Resource
    private UserMapper userMapper;

    @Override
    public UserDetails loadUserByUsername(String username) throws UsernameNotFoundException {
        // 根据用户名查询用户信息
        LambdaQueryWrapper<User> wrapper = new LambdaQueryWrapper<>();
        wrapper.eq(User::getUserName, username);
        User user = userMapper.selectOne(wrapper);
        // 如果查询不到数据就通过抛出异常来给出提示
        if (Objects.isNull(user)) {
            throw new RuntimeException("用户名或密码错误");
        }
        // TODO 根据用户查询权限信息 添加到LoginUser中

        // 封装成UserDetails对象返回
        return new LoginUser(user);
    }
}